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# applyingGaussianBlur(sigma:)

Create an image by applying a gaussian blur to the receiver.

```
func applyingGaussianBlur(sigma: Double) -> CIImage
```

## Parameters

`sigma`

The sigma of the gaussian blur to apply to the receiver.
If the sigma is very small (less than `0.16`) then the receiver is returned.

## Return Value


An autoreleased [`CIImage`](/documentation/CoreImage/CIImage) instance or the received image.

---

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